Couldn't find any missing connections on the circuitboard, also the 12v lead was dead... couldn't trace it to its origin but i did run a lead straight from the battery and plugged it in. Tach still doesn't work. Any other ideas or is it time to shell out at the shop? Thanks everyone for all your help.

Matt

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1987 300e

-Laziness is simply the act of resting before you become tired